I built my first shed when I was about 16, guessing it was about 4’x8′. Then I modified a 7’x14′ to be a bedroom in my parents backyard (the shack! – stereo and big speakers, power, telephone, cable built-in bed) was around 18, oh and I built a chicken coop in Bella Coola, BC and watched over some chickens for a while (one we called The Gimp was always escaping!) then after moving to North NJ, I built a 8’x12′ to hold tools and storage because the cottage is so small,  you have to go outside to change your mind!. anyways, after that I built the the tall shed on the right, then more recently I built a 10’x10 because I keep buying tools, electronics, drones and stuff. I bought a 16′ boat, now I need a shed for the motor maintenance and supplies! Soon, it will be time to move to the desert; by then I should see if I can get a big shop or something!